JP2015002178A - Led lighting fixture - Google Patents

Led lighting fixture Download PDF

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JP2015002178A
JP2015002178A JP2014123162A JP2014123162A JP2015002178A JP 2015002178 A JP2015002178 A JP 2015002178A JP 2014123162 A JP2014123162 A JP 2014123162A JP 2014123162 A JP2014123162 A JP 2014123162A JP 2015002178 A JP2015002178 A JP 2015002178A
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led element
light
led
light led
lighting apparatus
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JP5916800B2 (en
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浩翔 林
Hao-Xiang Lin
浩翔 林
忠民 張
Chung-Min Chang
忠民 張
明達 蔡
Ming-Da Tsai
明達 蔡
▲ミン▼舜 楊
Minshun Yang
▲ミン▼舜 楊
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Advanced Optoelectronic Technology Inc
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Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting fixture which improves color rendering properties of the LED lighting fixture without using an LED element having high color rendering properties.SOLUTION: An LED lighting fixture according to the invention includes a lamp support, and LED elements fixed to the interior of the lamp support. The LED elements include white light LED elements and a red light LED element. The lamp support includes a loading table and a recessed portion which is formed on the loading table being recessed. The white light LED elements are fixed to the loading table, and the red light LED element is fixed to the interior of the recessed portion.

Description

本発明は、ＬＥＤ照明器具に関し、特に高演色性を有するＬＥＤ照明器具に関するものである。   The present invention relates to an LED lighting apparatus, and more particularly to an LED lighting apparatus having high color rendering properties.

発光ダイオード（ＬＥＤ）は、高輝度、低電圧、低消費電力、ＩＣと組み合わせ易く、容易に駆動し且つ長寿命等の利点を有するため、照明領域において光源として幅広く利用されている。従来のＬＥＤ照明器具を採用した一般の白色光ＬＥＤ素子は、青色光ＬＥＤチップと黄色光蛍光体とが結合されて製造されたものである。具体的には、青色光ＬＥＤチップから出射した青色光と青色光が黄色光蛍光体を励起して出射した黄色光とが混合して白色光になる。しかし、これらにおいて赤色光の成分は少ないため、演色性は悪い。   Light emitting diodes (LEDs) are widely used as light sources in the illumination region because they have advantages such as high brightness, low voltage, low power consumption, easy combination with ICs, easy driving and long life. A general white light LED element employing a conventional LED lighting apparatus is manufactured by combining a blue light LED chip and a yellow light phosphor. Specifically, the blue light emitted from the blue light LED chip and the yellow light emitted by the blue light exciting the yellow light phosphor are mixed to become white light. However, since the red light component is small in these, the color rendering is poor.

ＬＥＤ照明器具の演色性の問題を解決するために、ほとんどの生産者が高演色性のＬＥＤ素子を採用する方法を介して、ＬＥＤ照明器具の演色性を高める。しかし、この場合、コストを増加させ、また一般の白色光ＬＥＤ素子を利用できないため、生産材料の浪費を招く。   In order to solve the problem of color rendering properties of LED lighting fixtures, most producers increase the color rendering properties of LED lighting fixtures through a method that employs high color rendering LED elements. However, in this case, the cost is increased and a general white light LED element cannot be used, resulting in a waste of production material.

上記の問題点に鑑みて、本発明は、高演色性のＬＥＤ素子を用いずに、ＬＥＤ照明器具の演色性を高めることができるＬＥＤ照明器具を提供することを目的とする。   In view of the above problems, an object of the present invention is to provide an LED lighting device that can improve the color rendering properties of the LED lighting device without using a high color rendering LED element.

上記の課題を解決するために、本発明に係るＬＥＤ照明器具は、ランプ支持体及び前記ランプ支持体の内部に固定されたＬＥＤ素子を備える。前記ＬＥＤ素子は、白色光ＬＥＤ素子及び赤色光ＬＥＤ素子を含み、前記ランプ支持体は、積載台及び前記積載台に凹んで形成された凹所を含み、前記白色光ＬＥＤ素子は、前記積載台に固定され、前記赤色光ＬＥＤ素子は、前記凹所の内部に固定されている。   In order to solve the above-mentioned problems, an LED lighting apparatus according to the present invention includes a lamp support and an LED element fixed inside the lamp support. The LED element includes a white light LED element and a red light LED element, the lamp support includes a loading table and a recess formed in the loading table, and the white light LED element includes the loading table. The red light LED element is fixed inside the recess.

従来の技術と異なり、本発明のＬＥＤ照明器具は、高演色性のＬＥＤを用いずに、一般の白色光ＬＥＤ素子及び一般の赤色光ＬＥＤ素子の数量の変化及び照明器具の構造上の特徴を介して、ＬＥＤ照明器具における高演色性及び色温度の変更を実現できる。従って、ＬＥＤ照明器具のメーカーは、新製品開発の際のコストを削減し、ＬＥＤ素子の利用方式を多様化できる。また、本発明の高演色性のＬＥＤ照明器具を使用して物品を照らすと、自然な色彩を現すことができる。これにより、本発明のＬＥＤ照明器具は、色検査、臨床検査に利用できると共に、美術館等の高演色性のランプを必要とする場所にも利用できる。   Unlike the prior art, the LED lighting fixture of the present invention does not use a high color rendering LED, changes the number of general white light LED elements and general red light LED elements, and the structural characteristics of the lighting fixture. Accordingly, it is possible to realize high color rendering and color temperature change in the LED lighting apparatus. Therefore, the manufacturer of the LED lighting apparatus can reduce the cost for developing a new product and diversify the usage method of the LED element. In addition, when an article is illuminated using the high color rendering LED lighting device of the present invention, a natural color can be exhibited. As a result, the LED lighting apparatus of the present invention can be used for color inspection and clinical inspection, and can also be used for places that require a high color rendering lamp such as a museum.

本発明に係るＬＥＤ照明器具の断面図である。It is sectional drawing of the LED lighting fixture which concerns on this invention. 図１に示したＬＥＤ照明器具の主体部を示す図である。It is a figure which shows the main part of the LED lighting fixture shown in FIG. 本発明の異なる白色光ＬＥＤ素子と赤色光ＬＥＤ素子とを組み合せた際のＣＲＩの対比を示す図である。It is a figure which shows contrast of CRI at the time of combining the white light LED element and red light LED element from which this invention differs. 本発明の第一比較例における白色光ＬＥＤ素子と赤色光ＬＥＤ素子とのレイアウトを示す図である。It is a figure which shows the layout of the white light LED element and red light LED element in the 1st comparative example of this invention. 本発明の第二比較例における白色光ＬＥＤ素子と赤色光ＬＥＤ素子とのレイアウトを示す図である。It is a figure which shows the layout of the white light LED element and red light LED element in the 2nd comparative example of this invention. 本発明の第三比較例における白色光ＬＥＤ素子と赤色光ＬＥＤ素子とのレイアウトを示す図である。It is a figure which shows the layout of the white light LED element and red light LED element in the 3rd comparative example of this invention. 本発明の異なる白色光ＬＥＤ素子と赤色光ＬＥＤ素子とを組み合わせた際の色温度対比を示す図である。It is a figure which shows color temperature contrast at the time of combining the white light LED element and red light LED element from which this invention differs.

図１及び図２に示すように、本発明に係るＬＥＤ照明器具は、主体部１０及びハウジング２０を備える。主体部１０の中の各電子部品は、外部電源（図示せず）に電気的に接続されて、前記ＬＥＤ照明器具が動作する時に必要な電気エネルギーを取得する。主体部１０は、ハウジング２０に機械的に連接されている。   As shown in FIGS. 1 and 2, the LED lighting apparatus according to the present invention includes a main body 10 and a housing 20. Each electronic component in the main body 10 is electrically connected to an external power source (not shown), and acquires electrical energy required when the LED lighting apparatus operates. The main body 10 is mechanically connected to the housing 20.

主体部１０は、ランプ支持体１００と、白色光ＬＥＤ素子２０１と、赤色光ＬＥＤ素子２０２と、第一光拡散素子３０１と、第二光拡散素子３０２と、第一ＰＣＢ板（図示せず）と、第二ＰＣＢ板（図示せず）と、を備える。ランプ支持体１００は、積載台１０１及び積載台１０１の中間部に凹んで形成された凹所１０２を含む。第一ＰＣＢ板及び第二ＰＣＢ板は、積載台１０１及び凹所１０２にそれぞれ組み合わせて設置され、対応する白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２を搭載する。ランプ支持体１００の内面には、ＬＥＤ照明器具の光出射量を増加するための光反射塗料が塗布されている。また、ＬＥＤ照明器具の光出射量を高めるために、第一ＰＣＢ板及び第二ＰＣＢ板に光反射シートをそれぞれ重ねて接合しても良い。しかし、コストを下げるために、光反射シートを省略して、光反射塗料がコーティングされたＰＣＢ板を採用することが好ましい。   The main body 10 includes a lamp support 100, a white light LED element 201, a red light LED element 202, a first light diffusion element 301, a second light diffusion element 302, and a first PCB board (not shown). And a second PCB board (not shown). The lamp support 100 includes a loading platform 101 and a recess 102 that is recessed in the middle of the loading platform 101. The first PCB board and the second PCB board are installed in combination on the loading table 101 and the recess 102, respectively, and mount the corresponding white light LED element 201 and red light LED element 202. The inner surface of the lamp support 100 is coated with a light reflecting paint for increasing the amount of light emitted from the LED lighting apparatus. Moreover, in order to increase the light emission amount of the LED lighting apparatus, a light reflecting sheet may be overlapped and joined to the first PCB plate and the second PCB plate. However, in order to reduce costs, it is preferable to omit the light reflecting sheet and employ a PCB board coated with a light reflecting paint.

白色光ＬＥＤ素子２０１は、第一ＰＣＢ板に電気的に接続され、且つランプ支持体１００の積載台１０１の上面に固定されている。ランプ支持体１００の凹所１０２は、側壁１０２１及び底部１０２２を含む。赤色光ＬＥＤ素子２０２は、第二ＰＣＢ板に電気的に接続され、且つ凹所１０２の底部１０２２の上面に固定されている。このような構造は、赤色光ＬＥＤ素子２０２から出射した赤色光の光混合距離を増加させて、光線の均一性を高める。   The white light LED element 201 is electrically connected to the first PCB board and is fixed to the upper surface of the loading platform 101 of the lamp support 100. The recess 102 of the lamp support 100 includes a side wall 1021 and a bottom 1022. The red light LED element 202 is electrically connected to the second PCB board and is fixed to the upper surface of the bottom 1022 of the recess 102. Such a structure increases the light mixing distance of the red light emitted from the red light LED element 202 and improves the uniformity of the light beam.

ランプ支持体１００の側壁１０２１と底部１０２２との夾角αは３０度〜６０度であるので、底部１０２２に設けられた赤色光ＬＥＤ素子２０２から出射する赤色光を効果的に反射して、光ロスを減少させることができる。積載台１０１が凹所１０２を取り囲んでいるため、底部１０２２に位置する赤色光ＬＥＤ素子２０２は、積載台１０１に設けられた白色光ＬＥＤ素子２０１に包囲される。これにより、赤色光と白色光との混合光の均一性を高めることができる。白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との順方向電圧差は大きいので、本発明のＬＥＤ照明器具の前記第一ＰＣＢ板の白色光ＬＥＤ素子２０１と前記第二ＰＣＢ板の赤色光ＬＥＤ素子２０２は直列接続されている。これにより、白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２を流れる電流の不均等分布を防止すると共に、各ＬＥＤ素子を高電圧、低電流の条件下で動作させて、エネルギーの消費量を減らすことができる。   Since the depression angle α between the side wall 1021 and the bottom portion 1022 of the lamp support 100 is 30 ° to 60 °, the red light emitted from the red light LED element 202 provided on the bottom portion 1022 is effectively reflected to reduce the light loss. Can be reduced. Since the loading table 101 surrounds the recess 102, the red light LED element 202 located at the bottom 1022 is surrounded by the white light LED element 201 provided on the loading table 101. Thereby, the uniformity of the mixed light of red light and white light can be improved. Since the forward voltage difference between the white light LED element 201 and the red light LED element 202 is large, the white light LED element 201 of the first PCB plate and the red light LED element of the second PCB plate of the LED lighting apparatus of the present invention. 202 are connected in series. As a result, non-uniform distribution of the current flowing through the white light LED element 201 and the red light LED element 202 is prevented, and each LED element is operated under high voltage and low current conditions to reduce energy consumption. Can do.

第二光拡散素子３０２は、凹所１０２の上部の開口をカバーして、赤色光ＬＥＤ素子２０２から出射した光線を拡散する。また、本発明は、第二光拡散素子３０２に対してフォギング処理を行なうことによって、第二光拡散素子３０２を通過する赤色光の均一性を高めて、ＬＥＤ照明器具の赤色斑を薄めることができる。   The second light diffusing element 302 covers the opening above the recess 102 and diffuses the light emitted from the red light LED element 202. In addition, the present invention improves the uniformity of the red light passing through the second light diffusing element 302 by performing the fogging process on the second light diffusing element 302, and thins the red spots of the LED lighting apparatus. Can do.

第一光拡散素子３０１は、ランプ支持体１００の開口をカバーして、赤色光ＬＥＤ素子２０２からの第二光拡散素子３０２により拡散された後の赤色光及び白色光ＬＥＤ素子２０１から出射した白色光を拡散する。また、本発明は、第一光拡散素子３０１に対してフォギング処理を行なうことによって、ＬＥＤ照明器具が発した光線の均一性を高める。第一光拡散素子３０１の光透過率は、７０％〜９０％である。第二光拡散素子３０２の光透過率は、８０％〜９５％である。第一光拡散素子３０１と白色光ＬＥＤ素子２０１との垂直距離を３ｃｍ〜１０ｃｍの範囲内でコントロールし、前記垂直距離が小さ過ぎる場合、白色光と赤色光との光混合距離は小さくなり、ＬＥＤ照明器具の光線の均一性も悪くなる。また、前記垂直距離が大き過ぎる場合、光ロスを増加させるだけでなく、ＬＥＤ照明器具のサイズを増大させ、ランプ支持体１００及びハウジング２０のコストを増加させる。   The first light diffusing element 301 covers the opening of the lamp support 100 and white light emitted from the red light and white light LED elements 201 after being diffused by the second light diffusing element 302 from the red light LED elements 202. Diffuses light. In addition, the present invention improves the uniformity of the light emitted by the LED lighting fixture by performing the fogging process on the first light diffusing element 301. The light transmittance of the first light diffusing element 301 is 70% to 90%. The light transmittance of the second light diffusing element 302 is 80% to 95%. When the vertical distance between the first light diffusing element 301 and the white light LED element 201 is controlled within a range of 3 cm to 10 cm, and the vertical distance is too small, the light mixing distance between the white light and the red light becomes small, and the LED The uniformity of the light of the luminaire also deteriorates. If the vertical distance is too large, not only the light loss is increased, but also the size of the LED lighting apparatus is increased, and the cost of the lamp support 100 and the housing 20 is increased.

図３は、本発明の異なる白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２とを組み合せた際の演色性の対比図である。縦座標Ｒａは、平均演色評価数である。横座標は、異なる白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との組み合せたものであり、且つｘＷ＋ｙＲの方式で示される。Ｗは、白色光ＬＥＤ素子２０１を表し、Ｒは、赤色光ＬＥＤ素子２０２を表す。式ｘＷ＋ｙＲは、ｘ個の白色光ＬＥＤ素子２０１とｙ個の赤色光ＬＥＤ素子２０２の組み合せを意味する。白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との数量の比率は、ｘ：ｙである。例を挙げて説明すると、２Ｗ＋１Ｒは、２つの白色光ＬＥＤ素子２０１と１つの赤色光ＬＥＤ素子２０２との組み合せを意味する。つまり、白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との数量の比率は２：１である。   FIG. 3 is a contrast diagram of color rendering when the white light LED element 201 and the red light LED element 202 according to the present invention are combined. The ordinate Ra is an average color rendering index. The abscissa is a combination of different white light LED elements 201 and red light LED elements 202 and is shown in the xW + yR scheme. W represents the white light LED element 201, and R represents the red light LED element 202. The expression xW + yR means a combination of x white light LED elements 201 and y red light LED elements 202. The ratio of the quantity of the white light LED element 201 and the red light LED element 202 is x: y. For example, 2W + 1R means a combination of two white light LED elements 201 and one red light LED element 202. That is, the ratio of the quantity of the white light LED element 201 and the red light LED element 202 is 2: 1.

図３から分かるように、白色光ＬＥＤ素子２０１のみを使用する場合、ＬＥＤ照明器具の平均演色評価数は、９０より小さい。白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との数量の比率が４：１〜１：１の範囲内である場合、前記ＬＥＤ照明器具の平均演色評価数は全て９０以上である。また、白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との数量の比率が２：１である場合、即ち、２つの白色光ＬＥＤ素子２０１に１つの赤色光ＬＥＤ素子２０２を組み合わせた場合、前記ＬＥＤ照明器具の平均演色評価数は最も高い。   As can be seen from FIG. 3, when only the white light LED element 201 is used, the average color rendering index of the LED lighting apparatus is smaller than 90. When the ratio of the quantity of the white light LED element 201 and the red light LED element 202 is in the range of 4: 1 to 1: 1, all the average color rendering evaluation numbers of the LED lighting fixtures are 90 or more. Further, when the ratio of the quantity of the white light LED element 201 and the red light LED element 202 is 2: 1, that is, when one red light LED element 202 is combined with two white light LED elements 201, the LED The average color rendering index of luminaires is the highest.

上記の記載から分かるように、本発明のＬＥＤ照明器具は、高演色性のＬＥＤを用いずに、一般の白色光ＬＥＤ素子２０１及び一般の赤色光ＬＥＤ素子２０２を利用して、且つ白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２の数量の変化及び照明器具の構造上の特徴を介して、ＬＥＤ照明器具における高演色性及び色温度の変更を実現できる。また、ＬＥＤ照明器具のメーカーは、新製品開発の際のコストを削減し、ＬＥＤ素子の利用方式を多様化にさせることができる。   As can be seen from the above description, the LED lighting apparatus of the present invention uses a general white light LED element 201 and a general red light LED element 202 without using a high color rendering LED, and a white light LED. Through the change in the number of the elements 201 and the red light LED elements 202 and the structural features of the lighting fixture, it is possible to realize high color rendering properties and a change in color temperature in the LED lighting fixture. In addition, manufacturers of LED lighting fixtures can reduce the cost of developing new products and diversify the use methods of LED elements.

本発明の高演色性のＬＥＤ照明器具を使用して物品を照らすと、自然な色彩を現すことができる。従って、本発明のＬＥＤ照明器具は、色検査、臨床検査に利用できると共に、美術館等の高演色性のランプを必要とする場所にも利用できる。   When an article is illuminated using the high color rendering LED luminaire of the present invention, natural colors can appear. Therefore, the LED lighting apparatus of the present invention can be used for color inspection and clinical inspection, and can also be used for a place such as a museum that requires a high color rendering lamp.

前記ＬＥＤ照明器具の白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との数量の比率が２：１である場合、図４は本発明の第一比較例に係る２つの白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２とのレイアウトを示し、図５は本発明の第二比較例に係る２つの白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２とのレイアウトを示している。   When the ratio of the number of white light LED elements 201 and red light LED elements 202 of the LED lighting apparatus is 2: 1, FIG. 4 shows two white light LED elements 201 according to the first comparative example of the present invention and red light. FIG. 5 shows a layout of two white light LED elements 201 and a red light LED element 202 according to the second comparative example of the present invention.

図４に示すように、１つの赤色光ＬＥＤ素子２０２は、２つの白色光ＬＥＤ素子２０１の近傍に位置している。白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２が発した光線は混合し、且つ第一光拡散素子３０１及び第二光拡散素子３０２を通過した後、赤いハレーションの視覚効果を有する。   As shown in FIG. 4, one red light LED element 202 is located in the vicinity of the two white light LED elements 201. The light rays emitted by the white light LED element 201 and the red light LED element 202 are mixed and have a red halation visual effect after passing through the first light diffusing element 301 and the second light diffusing element 302.

図５に示すように、１つの赤色光ＬＥＤ素子２０２は、２つの白色光ＬＥＤ素子２０１の中央に位置している。白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２が発した光線は混合し、且つ第一光拡散素子３０１及び第二光拡散素子３０２を通過する。この際、赤いハレーションが減少したように見えるが、依然として赤色斑が見える。   As shown in FIG. 5, one red light LED element 202 is located at the center of the two white light LED elements 201. Light beams emitted from the white light LED element 201 and the red light LED element 202 are mixed and pass through the first light diffusion element 301 and the second light diffusion element 302. At this time, red halation appears to have decreased, but red spots are still visible.

図６に示すように、前記ＬＥＤ照明器具の白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２との数量の比率が４：１である場合、本発明の第三比較例において、１つの赤色光ＬＥＤ素子２０２は四つの白色光ＬＥＤ素子２０１の中央に位置し、白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２からの光線は混合し、且つ第一光拡散素子３０１及び第二光拡散素子３０２により拡散される。この際、該光線は、均一性が高く且つ赤色斑も見えない。つまり、本比較例に係るＬＥＤ照明器具は、高演色性を有するだけでなく、光線も均一である。   As shown in FIG. 6, when the ratio of the number of white light LED elements 201 and red light LED elements 202 of the LED lighting apparatus is 4: 1, one red light LED is used in the third comparative example of the present invention. The element 202 is located at the center of the four white light LED elements 201, the light rays from the white light LED element 201 and the red light LED element 202 are mixed and diffused by the first light diffusing element 301 and the second light diffusing element 302. Is done. At this time, the light beam has high uniformity and no red spots are visible. That is, the LED lighting apparatus according to this comparative example not only has high color rendering properties, but also has uniform light rays.

図７に示すように、一般の白色光ＬＥＤ素子２０１が発する白色光の相関色温度ＣＣＴは約５０００Ｋであり、寒色に属する。これに対して、本発明は、白色光ＬＥＤ素子２０１と赤色光ＬＥＤ素子２０２とを組み合せてＬＥＤ照明器具を構成する。これにより、前記ＬＥＤ照明器具の色温度は、寒色から暖色に変わる。また、白色光ＬＥＤ素子２０１及び赤色光ＬＥＤ素子２０２の数量を容易に変更でき、且つ前記ＬＥＤ照明器具の色温度を変えることができる。従って、ＬＥＤランプのメーカーは、新製品の開発時間を短縮することができる。   As shown in FIG. 7, the correlated color temperature CCT of white light emitted from a general white light LED element 201 is about 5000 K, and belongs to a cool color. On the other hand, the present invention constitutes an LED lighting fixture by combining the white light LED element 201 and the red light LED element 202. As a result, the color temperature of the LED lighting apparatus changes from a cold color to a warm color. Moreover, the quantity of the white light LED element 201 and the red light LED element 202 can be changed easily, and the color temperature of the said LED lighting fixture can be changed. Accordingly, the manufacturer of the LED lamp can shorten the development time of a new product.

本発明のＬＥＤ照明器具は、放熱部（図示せず）をさらに備える。前記放熱部は、良好な熱伝導率を有する多孔性材料又はフィンを採用し、且つランプ支持体１００及びハウジング２０とそれぞれ接触している。また、前記放熱部は、前記ＬＥＤ照明器具の電源に電気的に接続されたファンをさらに備える。   The LED lighting apparatus of the present invention further includes a heat radiating section (not shown). The heat radiating portion employs a porous material or fins having good thermal conductivity, and is in contact with the lamp support 100 and the housing 20, respectively. Moreover, the said heat radiating part is further provided with the fan electrically connected to the power supply of the said LED lighting fixture.

また、前記ＬＥＤ照明器具の放熱性を高め、ＬＥＤ素子の光減衰を減少するために、ランプ支持体１００のハウジング２０と接触する底部位置に、予め熱伝導ペーストを設けた後、ランプ支持体１００とハウジング２０とを機械的に連接させる。これにより、赤色光ＬＥＤ素子２０２の放熱を促進でき、赤色光ＬＥＤ素子２０２の発光効率が温度の上昇に伴って減衰する現象を軽減することができる。   In addition, in order to improve the heat dissipation of the LED lighting fixture and reduce the light attenuation of the LED element, a heat conductive paste is provided in advance at the bottom position in contact with the housing 20 of the lamp support 100, and then the lamp support 100. And the housing 20 are mechanically connected. Thereby, the heat radiation of the red light LED element 202 can be promoted, and the phenomenon that the luminous efficiency of the red light LED element 202 is attenuated as the temperature rises can be reduced.

１０ 主体部
１００ ランプ支持体
１０１ 積載台
１０２ 凹所
１０２１ 側壁
１０２２ 底部
２０ ハウジング
２０１ 白光ＬＥＤ素子
２０２ 赤光ＬＥＤ素子
３０１ 第一光拡散素子
３０２ 第二光拡散素子 DESCRIPTION OF SYMBOLS 10 Main part 100 Lamp support body 101 Loading stand 102 Recess 1021 Side wall 1022 Bottom part 20 Housing 201 White light LED element 202 Red light LED element 301 1st light diffusion element 302 2nd light diffusion element

Claims (8)

ランプ支持体及び前記ランプ支持体の内部に固定されたＬＥＤ素子を備えるＬＥＤ照明器具であって、
前記ＬＥＤ素子は、白色光ＬＥＤ素子及び赤色光ＬＥＤ素子を含み、前記ランプ支持体は、積載台及び前記積載台に凹んで形成された凹所を含み、前記白色光ＬＥＤ素子は、前記積載台に固定され、前記赤色光ＬＥＤ素子は、前記凹所の内部に固定されていることを特徴とするＬＥＤ照明器具。 An LED lighting apparatus comprising a lamp support and an LED element fixed inside the lamp support,
The LED element includes a white light LED element and a red light LED element, the lamp support includes a loading table and a recess formed in the loading table, and the white light LED element includes the loading table. And the red light LED element is fixed inside the recess. 前記白色光ＬＥＤ素子は、前記赤色光ＬＥＤ素子の周りを取り囲むように設けられていることを特徴とする請求項１に記載のＬＥＤ照明器具。   The LED lighting apparatus according to claim 1, wherein the white light LED element is provided so as to surround the red light LED element. 前記白色光ＬＥＤ素子と前記赤色光ＬＥＤ素子との数量の比率は、４：１〜１：１であることを特徴とする請求項１に記載のＬＥＤ照明器具。   2. The LED lighting apparatus according to claim 1, wherein a ratio of a quantity of the white light LED element and the red light LED element is 4: 1 to 1: 1. 前記凹所は、底部及び側壁を備え、前記底部と前記側壁との夾角は、３０度〜６０度であることを特徴とする請求項１に記載のＬＥＤ照明器具。   2. The LED lighting apparatus according to claim 1, wherein the recess includes a bottom portion and a side wall, and a depression angle between the bottom portion and the side wall is 30 degrees to 60 degrees. 前記ＬＥＤ照明器具は、前記白色光ＬＥＤ素子に電気的に接続された第一ＰＣＢ板及び前記赤色光ＬＥＤ素子に電気的に接続された第二ＰＣＢ板をさらに備え、前記第一ＰＣＢ板により搭載された白色光ＬＥＤ素子は、前記第二ＰＣＢ板により搭載された赤色光ＬＥＤ素子と直列接続されていることを特徴とする請求項１に記載のＬＥＤ照明器具。   The LED lighting apparatus further includes a first PCB board electrically connected to the white light LED element and a second PCB board electrically connected to the red light LED element, and is mounted by the first PCB board. 2. The LED lighting apparatus according to claim 1, wherein the white light LED element is connected in series with a red light LED element mounted by the second PCB plate. 前記ＬＥＤ照明器具は、前記凹所の上部の開口をカバーするように設置されて、前記赤色光ＬＥＤ素子が発する光線を拡散するための第二光拡散素子と、前記ランプ支持体の開口をカバーするように設置されて、前記ＬＥＤ照明器具全体が発する光線を拡散するための第一光拡散素子と、をさらに備えることを特徴とする請求項１に記載のＬＥＤ照明器具。   The LED lighting apparatus is installed to cover the upper opening of the recess, and covers the second light diffusing element for diffusing the light emitted by the red light LED element, and the opening of the lamp support. The LED lighting apparatus according to claim 1, further comprising: a first light diffusing element that is installed so as to diffuse light emitted from the entire LED lighting apparatus. 前記第一光拡散素子と前記白色光ＬＥＤ素子との垂直距離は、３ｃｍ〜１０ｃｍであり、前記第一光拡散素子の光透過率は、７０％〜９０％であり、前記第二光拡散素子の光透過率は、８０％〜９５％であることを特徴とする請求項６に記載のＬＥＤ照明器具。   The vertical distance between the first light diffusing element and the white light LED element is 3 cm to 10 cm, the light transmittance of the first light diffusing element is 70% to 90%, and the second light diffusing element. The LED light fixture according to claim 6, wherein the light transmittance is 80% to 95%. 前記第一光拡散素子及び前記第二光拡散素子は、フォギング処理されることを特徴とする請求項７に記載のＬＥＤ照明器具。   8. The LED lighting apparatus according to claim 7, wherein the first light diffusing element and the second light diffusing element are fogged.
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